6390290 has 16 divisors (see below), whose sum is σ = 11698560. Its totient is φ = 2512560.

The previous prime is 6390281. The next prime is 6390313. The reversal of 6390290 is 920936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (731160).

Almost surely, 2^6390290 is an apocalyptic number.

6390290 is a deficient number, since it is larger than the sum of its proper divisors (5308270).

6390290 is a wasteful number, since it uses less digits than its factorization.

6390290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 6390290 is about 2527.9022924156. The cubic root of 6390290 is about 185.5696103447.

The spelling of 6390290 in words is "six million, three hundred ninety thousand, two hundred ninety".